|
|
|
|
|
Tech and Testing
Claiming that Fullback®FC siding insulation is superior to every other fiber cement siding underlayment is not enough for us. We insist on proving it. We engineer and manufacture all Fullback®FC components to exceed the highest standards and specifications set by standards organizations. Then, we commission independent testing laboratories to perform a broad series of rigorous tests to prove the performance of the product.
Our patented, contoured foam insulation exceeds the highest standards and specifications of ASTM International and other standards organizations. Learn more about our engineering, manufacturing process and specific standards testing here.
Product Composition |
Standard(s) |
| Expandable Polystyrene (EPS) | ASTM C578-10 |
Physical Properties |
Standard |
| Impact Resistance | - |
| Expansion and Contraction | - |
| Burning Characteristics | ASTM D4986 |
| Toxicity | - |
Moisture |
Standard |
| Moisture Absorption | - |
| Wind Driven Rain | ASTM E331 |
| Water Vapor Permeability | ASTM E96 |
| Weather Resistant Barrier | - |
| Dew Point | - |
Energy Efficiency |
Standard |
| R-value Testing | ASTM C1363 |


ASTM International is one of the largest consensus-based standards development organizations in the world. It has been developing technical standards for products for more than 100 years. ASTM standards for building materials are developed with input fro consumers, building code officials, government agencies, architects, builders, and manufacturers. Progressive Foam is an active participant in the development of standards for plastic building materials. For more information, visit
UL (Underwriters Laboratories) is the trusted resource across the globe for product safety certification and compliance solutions. Benefiting a range of customers- from manufacturers and consumers to regulatory bodies and code officials- they’ve tested products for public safety for more than a century. For more information, visit
Throughout this website, test reports, bulletins and white papers will be marked with this emblem to help indicate the location of technical information.